html,body,#app,.el-container{
  height:100%
}


.el-menu--collapse .el-submenu__title span {
  height: 0;
  width: 0;
  overflow: hidden;
  visibility: hidden;
  display: inline-block;
}

.el-menu--collapse .el-menu-item .el-submenu__icon-arrow,
.el-menu--collapse .el-submenu .el-submenu__title .el-submenu__icon-arrow {
  display: none;
}

.el-menu-item-group .el-menu-item {
  padding: 0 0 0 30px;

}

.el-menu-item-group .el-menu-item-group__title {
  padding: 0
}